fix(run): makes run never prompt

`watch` and `verify` do prompt the user to actively move to the
next exercise. This change fixes `run` to never prompt. Previously
it was inconsistent between "test" and "compile" exercises.

BREAKING CHANGE: we again change the behavior of the `run` command

Cargo.lock

@@ -168,6 +168,14 @@ dependencies = [
  "redox_syscall 0.1.54 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "float-cmp"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "fsevent"
 version = "0.4.0"
@@ -351,6 +359,11 @@ dependencies = [
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "normalize-line-endings"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "notify"
 version = "4.0.12"
@@ -369,6 +382,14 @@ dependencies = [
  "winapi 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "num-traits"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "autocfg 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "numtoa"
 version = "0.1.0"
@@ -405,7 +426,10 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "float-cmp 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "normalize-line-endings 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "predicates-core 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -613,6 +637,7 @@ dependencies = [
  "glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "indicatif 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "notify 4.0.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "predicates 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.92 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -850,6 +875,7 @@ dependencies = [
 "checksum encode_unicode 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "90b2c9496c001e8cb61827acdefad780795c42264c137744cae6f7d9e3450abd"
 "checksum escargot 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ceb9adbf9874d5d028b5e4c5739d22b71988252b25c9c98fe7cf9738bee84597"
 "checksum filetime 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "2f8c63033fcba1f51ef744505b3cad42510432b904c062afa67ad7ece008429d"
+"checksum float-cmp 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "134a8fa843d80a51a5b77d36d42bc2def9edcb0262c914861d08129fd1926600"
 "checksum fsevent 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5ab7d1bd1bd33cc98b0889831b72da23c0aa4df9cec7e0702f46ecea04b35db6"
 "checksum fsevent-sys 2.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f41b048a94555da0f42f1d632e2e19510084fb8e303b0daa2816e733fb3644a0"
 "checksum fuchsia-cprng 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "a06f77d526c1a601b7c4cdd98f54b5eaabffc14d5f2f0296febdc7f357c6d3ba"
@@ -873,7 +899,9 @@ dependencies = [
 "checksum mio-extras 2.0.5 (registry+https://github.com/rust-lang/crates.io-index)" = "46e73a04c2fa6250b8d802134d56d554a9ec2922bf977777c805ea5def61ce40"
 "checksum miow 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1f2f3b1cf331de6896aabf6e9d55dca90356cc9960cca7eaaf408a355ae919"
 "checksum net2 0.2.33 (registry+https://github.com/rust-lang/crates.io-index)" = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
+"checksum normalize-line-endings 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2e0a1a39eab95caf4f5556da9289b9e68f0aafac901b2ce80daaf020d3b733a8"
 "checksum notify 4.0.12 (registry+https://github.com/rust-lang/crates.io-index)" = "3572d71f13ea8ed41867accd971fd564aa75934cf7a1fae03ddb8c74a8a49943"
+"checksum num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "6ba9a427cfca2be13aa6f6403b0b7e7368fe982bfa16fccc450ce74c46cd9b32"
 "checksum numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
 "checksum parking_lot 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fa7767817701cce701d5585b9c4db3cdd02086398322c1d7e8bf5094a96a2ce7"
 "checksum parking_lot_core 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cb88cb1cb3790baa6776844f968fea3be44956cf184fa1be5a03341f5491278c"

Cargo.toml

@@ -19,4 +19,5 @@ path = "src/main.rs"
 
 [dev-dependencies]
 assert_cmd = "0.11.0"
+predicates = "1.0.1"
 glob = "0.3.0"

src/run.rs

@@ -5,9 +5,7 @@ use indicatif::ProgressBar;
 
 pub fn run(exercise: &Exercise) -> Result<(), ()> {
     match exercise.mode {
-        Mode::Test => {
+        Mode::Test => test(exercise)?,
-            test(exercise)?;
-        }
         Mode::Compile => compile_and_run(exercise)?,
     }
     Ok(())

src/verify.rs

@@ -1,11 +1,11 @@
-use crate::exercise::{ContextLine, Exercise, Mode, State};
+use crate::exercise::{Exercise, Mode, State};
 use console::{style, Emoji};
 use indicatif::ProgressBar;
 
 pub fn verify<'a>(start_at: impl IntoIterator<Item = &'a Exercise>) -> Result<(), ()> {
     for exercise in start_at {
         let is_done = match exercise.mode {
-            Mode::Test => test(&exercise)?,
+            Mode::Test => compile_and_test_interactively(&exercise)?,
             Mode::Compile => compile_only(&exercise)?,
         };
         if !is_done {
@@ -15,6 +15,11 @@ pub fn verify<'a>(start_at: impl IntoIterator<Item = &'a Exercise>) -> Result<()
     Ok(())
 }
 
+pub fn test(exercise: &Exercise) -> Result<(), ()> {
+    compile_and_test(exercise, true)?;
+    Ok(())
+}
+
 fn compile_only(exercise: &Exercise) -> Result<bool, ()> {
     let progress_bar = ProgressBar::new_spinner();
     progress_bar.set_message(format!("Compiling {}...", exercise).as_str());
@@ -25,12 +30,7 @@ fn compile_only(exercise: &Exercise) -> Result<bool, ()> {
         let formatstr = format!("{} Successfully compiled {}!", Emoji("✅", "✓"), exercise);
         println!("{}", style(formatstr).green());
         exercise.clean();
-        if let State::Pending(context) = exercise.state() {
+        Ok(prompt_for_completion(&exercise))
-            print_everything_looks_good(exercise.mode, context);
-            Ok(false)
-        } else {
-            Ok(true)
-        }
     } else {
         let formatstr = format!(
             "{} Compilation of {} failed! Compiler error message:\n",
@@ -44,7 +44,11 @@ fn compile_only(exercise: &Exercise) -> Result<bool, ()> {
     }
 }
 
-pub fn test(exercise: &Exercise) -> Result<bool, ()> {
+fn compile_and_test_interactively(exercise: &Exercise) -> Result<bool, ()> {
+    compile_and_test(exercise, false)
+}
+
+fn compile_and_test(exercise: &Exercise, skip_prompt: bool) -> Result<bool, ()> {
     let progress_bar = ProgressBar::new_spinner();
     progress_bar.set_message(format!("Testing {}...", exercise).as_str());
     progress_bar.enable_steady_tick(100);
@@ -60,12 +64,7 @@ pub fn test(exercise: &Exercise) -> Result<bool, ()> {
             let formatstr = format!("{} Successfully tested {}!", Emoji("✅", "✓"), exercise);
             println!("{}", style(formatstr).green());
             exercise.clean();
-            if let State::Pending(context) = exercise.state() {
+            Ok(skip_prompt || prompt_for_completion(exercise))
-                print_everything_looks_good(exercise.mode, context);
-                Ok(false)
-            } else {
-                Ok(true)
-            }
         } else {
             let formatstr = format!(
                 "{} Testing of {} failed! Please try again. Here's the output:",
@@ -91,8 +90,13 @@ pub fn test(exercise: &Exercise) -> Result<bool, ()> {
     }
 }
 
-fn print_everything_looks_good(mode: Mode, context: Vec<ContextLine>) {
+fn prompt_for_completion(exercise: &Exercise) -> bool {
-    let success_msg = match mode {
+    let context = match exercise.state() {
+        State::Done => return true,
+        State::Pending(context) => context,
+    };
+
+    let success_msg = match exercise.mode {
         Mode::Compile => "The code is compiling!",
         Mode::Test => "The code is compiling, and the tests pass!",
     };
@@ -120,4 +124,6 @@ fn print_everything_looks_good(mode: Mode, context: Vec<ContextLine>) {
             formatted_line
         );
     }
+
+    false
 }

tests/fixture/state/finished_exercise.rs

@@ -0,0 +1,5 @@
+// fake_exercise
+
+fn main() {
+
+}

tests/fixture/state/info.toml

@@ -0,0 +1,11 @@
+[[exercises]]
+name = "pending_exercise"
+path = "pending_exercise.rs"
+mode = "compile"
+hint = """"""
+
+[[exercises]]
+name = "pending_test_exercise"
+path = "pending_test_exercise.rs"
+mode = "test"
+hint = """"""

tests/fixture/state/pending_test_exercise.rs

@@ -0,0 +1,4 @@
+// I AM NOT DONE
+
+#[test]
+fn it_works() {}

tests/integration_tests.rs

@@ -1,5 +1,6 @@
 use assert_cmd::prelude::*;
 use glob::glob;
+use predicates::boolean::PredicateBooleanExt;
 use std::fs::File;
 use std::io::Read;
 use std::process::Command;
@@ -136,3 +137,25 @@ fn all_exercises_require_confirmation() {
         ));
     }
 }
+
+#[test]
+fn run_compile_exercise_does_not_prompt() {
+    Command::cargo_bin("rustlings")
+        .unwrap()
+        .args(&["r", "pending_exercise"])
+        .current_dir("tests/fixture/state")
+        .assert()
+        .code(0)
+        .stdout(predicates::str::contains("I AM NOT DONE").not());
+}
+
+#[test]
+fn run_test_exercise_does_not_prompt() {
+    Command::cargo_bin("rustlings")
+        .unwrap()
+        .args(&["r", "pending_test_exercise"])
+        .current_dir("tests/fixture/state")
+        .assert()
+        .code(0)
+        .stdout(predicates::str::contains("I AM NOT DONE").not());
+}